Vorinostat Active Not Recruiting Phase 1 Trials for Stage IV Nasopharyngeal Keratinizing Squamous Cell Carcinoma AJCC v7 / Stage IV Nasopharyngeal Undifferentiated Carcinoma / Recurrent Nasopharyngeal Undifferentiated Carcinoma / Adult Nasal Type Extranodal NK/T-Cell Lymphoma / Recurrent Nasopharyngeal Keratinizing Squamous Cell Carcinoma / Stage IV Nasopharyngeal Keratinizing Squamous Cell Carcinoma / Stage IV Nasopharyngeal Undifferentiated Carcinoma AJCC v7 Treatment